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The Signature for <package> is 'NotSigned. #48

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The Signature for <package> is 'NotSigned.#48
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bugSomething isn't working
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P0

Description

@JustinGrote
Justin Grote (JustinGrote)
opened on Sep 20, 2023

Prerequisites

  • Write a descriptive title.
  • Make sure you are able to repro it on the latest released version
  • Search the existing issues.

Steps to reproduce

Attemping to install module jmg.files from the PowerShell Gallery repository. It failed to install saying it was NotSigned. Module is not signed but also has no indicators that it should be (that I can tell).

The module does have Microsoft.Graph dependencies which may be related?

Expected behavior

Installs the module

Actual behavior

❯ install-module jmg.files
Install-PSResource: The signature for 'JMg.Files' is 'NotSigned.
Install-PSResource: Package(s) 'jmg.files' could not be installed from repository 'PSGallery'.
``

Error details

❯ install-module jmg.files
Install-PSResource: The signature for 'JMg.Files' is 'NotSigned.
Install-PSResource: Package(s) 'jmg.files' could not be installed from repository 'PSGallery'.
``

Environment data

❯ gmo Microsoft.PowerShell.PSResourceGet; $PSVersionTable | Format-Table

ModuleType Version    PreRelease Name                                ExportedCommands
---------- -------    ---------- ----                                ----------------
Binary     0.9.0      rc1        Microsoft.PowerShell.PSResourceGet  {Find-PSResource, Get-InstalledPSResource, Get-PS…


Name                           Value
----                           -----
PSVersion                      7.3.6
PSEdition                      Core
GitCommitId                    7.3.6
OS                             Microsoft Windows 10.0.23545
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0


### Visuals

_No response_

Activity

  1. SydneyhSmith commented on Sep 25, 2023

    @SydneyhSmith
    Sydney Smith (SydneyhSmith)
    on Sep 25, 2023
    Collaborator

    Thanks Justin Grote (@JustinGrote) this looks like an issue with the Compat module translating a change in behavior of PSResourceGet, we should turn off publisher checks in compat as this doesn't translate well

  2. Sydney Smith (SydneyhSmith)
    transferred this issue fromPowerShell/PSResourceGeton Sep 25, 2023
  3. Sydney Smith (SydneyhSmith)
    transferred this issue fromPowerShell/PowerShellGetv2on Sep 25, 2023
  4. Sydney Smith (SydneyhSmith)
    transferred this issue fromPowerShell/PSResourceGeton Sep 25, 2023

  5. wrbst commented on Jan 19, 2024

    @wrbst
    Nick Nikolaev (wrbst)
    on Jan 19, 2024

    Today I hit the same problem in one Windows 11 VM:

    gmo Microsoft.PowerShell.PSResourceGet; $PSVersionTable | Format-Table

ModuleType Version    PreRelease Name                                ExportedCommands
---------- -------    ---------- ----                                ----------------
Binary     1.0.1                 Microsoft.PowerShell.PSResourceGet  {Find-PSResource, Get-InstalledPSResource, Get-PSResourceRepository, Get-PSScriptFileInfo…}


Name                           Value
----                           -----
PSVersion                      7.4.1
PSEdition                      Core
GitCommitId                    7.4.1
OS                             Microsoft Windows 10.0.22631
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

    As suggested by SydneyhSmith the workaround is to add "-SkipPublisherCheck" as parameter during Install-Module.

  6. alerickson
    added
    bugSomething isn't working
    on Jul 31, 2026
  7. alerickson
    added this to the P0 milestone on Aug 6, 2026
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